Pioneer Space Exploration
Discoveries and Achievements
Galileo attended the University of Pisa and studied medicine but then switched to philosophy and mathematics. In 1589 he became a professor of mathematics at Pisa University.
In 1609 Galileo heard about the invention of the telescope in Holland and without seeing an example, created and even better model himself. He made many discoveries and these included the finding of mountains and valleys on the moon, sunspots, the phases of Venus and Jupiters four largest moons (Io, Europa, Claisto and Ganymede).
The Battle with Hersey
Discovery of Jupiter's moons
Galileo Galilie died on the 8th of January 1642.